I had a great stay in Circle 11. Mike is a super-responsive and gracious host. The apartment is located in an excellent area just opposite Fraser Suites, with many amenities very close by, including the great Villa Supermarket, which is barely a stone's throw away.
The apartment has a bedroom and a small living room area, which is separated by a cunning partition that can be closed for privacy or opened to make the space seem larger. The shower is huge and the water pressure excellent, while the kitchen is well stocked with everything you might need, although to be fair, there is so much food available in the many restaurants on soi 11 that you're unlikely to make use of it.
For those of you who are light sensitive, the curtains are adequately dark. Overall, I'd be happy to recommend this apartment to singles or couples with or without children. It can accommodate more than 2 people as it has a sofa-bed, but given the floor-space, more than two adults would result in a cramped experience, in my opinion.